Face book like button problem

Hi,
Iam using the following code
<iframe src="http://www.facebook.com/plugins/like.php?href=<%=detailPageURL%>&send=false&layout=button_count&width=450&show_faces=true&action=like&colorscheme=light&font=verdana&height=21" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:75px; height:21px;" allowTransparency="true">
for Facebook like button..I am facing problem...that I am not able to see any thumbnails in the facebook account after posting or clicking like button ...Please help me to resolve this issue...